Wall light



2 Sheefs-Sheet 1 INVENTOR.

ATTORNEY fa-'195 M M. l. KAST WALL LIGHT Sept. 13, 1927,

Filed July 25. 192e Sept. 13, 1927.

WALL LIGHT Filed-Ju1y 23. 1926 2 Sheets-Sheet 2 INVENTOR. MZYZTZQMZ,

( .f ATTORNEY Patented Sept. 13, 1927. v

IILLEB I. KAST, F HABBIBBUBG, PENNSYLVANIA.

WALL LIGHT.-

Application led July 23,

This invention relates to electric lights and particularly to anelectric light designed to e supported upon the wall of a room, hall orcorridor, in such manner as to lie close to the wall and constructed tocast the light rays forwardly, upwardly, downwardly and laterally,whereby effective illumination of the floor and all portions of the roomor apartment may be obtained without glaring light reflection from awall or the casting of the light rays with objectionable intensity inany irection. More particularly the invention relates to a lightespecially intended for use in hospitals, hotels, libraries and otherlike places, for producing illumination without glare within a certainarea and without causing undue illumination or glare liable to causeannoyance or disturbance, in such cases as where a limited but certainamount of illumination is desired or required. While an electricilluminating device embodying my invention may be used, when desired, tosecure a bright light effect, without undue glare, it is of specialvalue for use in lighting an intended area with a soft or subdued light,so as to give sufficient light for clear vis1on without annoying ordisturbing effects.

One object of my invention is to provide an electric light structure ofsimple and effective type" for illuminating a room, hall or corridor inthe `manner specified, and which is so constructed as to be made up ofprocurable standard parts, thus enabling it to be made up, sold andinstalled at a comparativel low cost.

A furt er object of the invention is to provide a light structure, thefixture parts of which are enclosed in a wall, while the lamp itself ismounted in advance of the wall, and close to the wall, which isconstructed and arranged so as to prevent wall glare or relection, andwhich may be enclosed by a door or cover embodying a prismatic lens ofsuch type as to subdue the light while casting the rays thereof in alldirections.

The invention consists of the features of construction, combination andarrangement of parts, hereinafter fully described and claimed, referencebein had to the accompanying drawings, in w ich Figure 1 is a face viewshowing the lamp mounted in a wall.

Figure 2 is a vertical front-to-rear section taken on the line 2 2 ofFigure 1.

Figure 3 is a sectional elevation on line 1928. Serial lo. 124,490.

3 3 of Figure 2, loolng toward the outlet box and lamp, the door anddoor frame being removed.

Figure 4 isa horizontal transverse sectionr on line 4 4 of Figure 1.

Figure 5 is a horizontal transverse section on line 5 5 of Figure 1,showing the door swung open.

Figure 6 is a horizontal transverse section on line 6 6 of Figure 5.

In carrying my invention into practice, I provide an outlet box 1, ofoblong rectangular form, and which is set within an opening or recess 2in a wall 3, said box being normally open at the front and having itsopen front lying flush with the face of the wall. This box may be one ofstandard type havin a suitable arrangement of portions 4 adapte to bepunched out for passage of line conductors.

A lamp holding bracket 5 is provided to support the lamp socket 6 inwhich the lam 7 is fitted. This lamp may be a standar show case nitrogenlamp of suitable candle power, and which is provided with acomparatively long vacuum bulb of comparatively small diameter, allowinga lamp supporting structure of comparatively narrow width to be used.The bracket 5, as shown, preferably extends outwardly and upwardly at anangle, to support the socket 6 and lamp 7 just outwardly beyond thefront of the box and in advance of the face of the wall 3, and the rearend of this bracket is suitably fastened to the floor of the box, as bymeans of a fastening bolt and nut 8. The

side walls of the box are provided at their front edges with lugs 9 forthe passage of screws or other fastenings 10 to secure the box to thewall, and conductors 11 from a supply lead or cable 12, located withinthe wall. extend into the outlet box and are suitably attached to thelamp socket terminals. As will be readily understood, the lead or mainconductor 12 is extended through an opening formed by punching out oneof the portions 4 and may be clamped or secured in position in anypreferred manner. The side walls of the box are also provided with otherlugs 13 having-threaded openings to receive screws 14 for fasteninthereto a frame plate 15, 'which extends algl around the sides of thebox and forms an ornamental facing therefor. To one side of this frameplate is hinged, as at 16, a door frame 17, provided with a flangedclamping lll ring or retaining member 18 to engage a flanged lens 19 tosecure the latter to the door frame 17. The door carrying the lens isthus mounted to swing to open and closed positions and is adapted to beheld in closed position by a latch or other suitable fastener 20. Theopening in the door frame is o f a forni and size corresponding to theopening in the front of the outlet box 1 and the frame 17 is adapted,when closed, to abut flatly against the frame plate 15, which 1spermitted by employing screws 14 of countersunk type.

The lens 19 is of concavo-convex forni longitudinally and transversely,.and in transverse section may be semi-circular or of slightlyelliptical contour and in longitudinal section is in the form ofone-half of an elongated ellipse, This lens may be of suitable glass,plain or frosted,and is of prismatic character, being provided withprismatie ribs 'Z1 extending from all sides thereof convergently towardand meeting at the center thereof. By the use of this type of lens thelight rays from the lamp 7 will be cast in all directions, that is,forwardly, downwardly, upwardly and laterally from both sides of thelamp, thus giving eective illumination in all directions. The light raysthus transmitted will be of penetrative character but will be soft andsubdued and without glare.

In the use of the device, it is mounted in the wall of a room, hall orcorridor, and will, it is obvious, be arranged close to the wall, sothat it will be out of the way of persons walking in the room or ofcleaning implements being used, so that it is not liable to becomedamaged, while it will supply illumination of sufficient character torender it valuable and extremely desirable for use in hospitals, hotels,libraries and other places where it is desired to prevent wall or otherglare reflections and provide sufficient illumination to enable objectsto be seen. By reason of the construction described, as a result ofwhich all parts of the fixture are mounted substantially within theoutlet box and within thc line of the wall, the lamp 7 will be supportedso lthat it will lie close to the wall but a sufficient distance outwardtherefrom to enable its rays to be cast, without wall glare, for anefficient illuminating effect. While the use of the prismatic re- Hector19 is in general desirable and designed to be used for a soft lightingeffect, aA lens of plain character may be employed, that is. one ofnon-prismatic character, when it is desired to provide a lamp which willgive bright illumination with a. minimum degree of glare, reflection orother disturbing or anuovlvng effects.

lfi'aving thus fully described my invention.y I claimt- 1. In anelectric light, an outlet box of major length in a vertical directionand mounted in a wall and having an open front substantially flush withthe face of the Wall, a lamp .supporting means carried by and projectingthrough the open front of the box at the base thereof and constructedand arranged for vertically supporting a lamp close to but with its bulblying wholly in advance of and parallel with the face of the wall, and alens closing the front of the box and surrounding the front and sides ofthe lamp and operative to refiect the light rays forward, upward,downward and beyond both sides of the lamp in advance of the face of thewall.

2. In an electric light, an outlet box mounted in a wall and having anopen front of oblong rectangular form of major length in a verticaldirection and lying flush with the fac-e of the wall, means carried bythe box andv projecting through the open front thereof for supporting alamp having an elongated bulb extending in the direction of its lengthparallel with and close to but in advance of the face of the wall, and alens closing the front of the box and surrounding the front and sides ofthe lamp and operative to reflect the light rays forward, upward,downward and beyond both sides of the lamp in advance of the face of thewall.

3. In an electric lamp, an outlet box adapted to be mounted in a walland having an open front, lamp supporting means carried by said box forsupporting a lamp close tc but mainly in advance of the face of thewall, conducting means extending into the outlet box for supplyingcurrent to the lamp, a frame plate secured to the outlet box andextending around the front thereof, ,a door hinged to said frame plate,and a lens carried by the door frame to enclose the exteriorlyprojecting portion of the lamp when in closed position, said lens beinglongitudinal- 1y and transversely of concave-convex form and havingprismatic ribs extending from all sides thereof eonvergently toward thecenter thereof.

4. In an electric light, an outlet box adapted to be mounted in a walland having an open front lying substantially flush when applied with thesurface of the wall, lamp supporting means carried by the box, a lampcarried by said supporting means and arranged mainly in advance of theopen front of the box and parallel with the face of the wall, and a lensfor closing the open front of the box and enclosing the exteriorlyprojccting portion of the lamp, said lens being longitudinally andtransversely of concavoconvex form and having prisniatic ribs extendingfrom all sides thereof convergently toward the center thereof.

In testimony whereof I affix mv signature.

MILLER I. KAST.

